08-10 SS Turbocharged General Discussion Discuss the 2008 - 2009 Chevy Cobalt SS Turbocharged. On sale since the second quarter of 2008.

LNF coked valves vs meth

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Old 02-07-2016, 09:45 PM
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Originally Posted by tomj77
don't go that way or ull need a solenoid to keep the engine from syphoning ur meth out of the line when its in vacuum not spraying.
what? most kits have a check valve built into the nozzle holder, you need to reach the set cracking pressure before anything flows out of that nozzle
Old 02-07-2016, 10:10 PM
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Originally Posted by nathan112i
what? most kits have a check valve built into the nozzle holder, you need to reach the set cracking pressure before anything flows out of that nozzle
Most GOOD kits do
Old 02-08-2016, 08:32 AM
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Originally Posted by nathan112i
what? most kits have a check valve built into the nozzle holder, you need to reach the set cracking pressure before anything flows out of that nozzle
No kit that iv seen has one it's extra
Old 02-08-2016, 08:35 AM
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Snow doesn't, Devils own doesn't, idk about aem. Every one iv seen u have to buy it extra. Devils own has the best one iv tried. That is right though solenoid isn't required just check valve
Old 02-08-2016, 08:50 AM
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Originally Posted by tomj77
Snow doesn't, Devils own doesn't, idk about aem. Every one iv seen u have to buy it extra. Devils own has the best one iv tried. That is right though solenoid isn't required just check valve
That is so weird, because this Snow kit does

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Old 02-08-2016, 09:07 AM
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And apparently every Snow kit comes with a check valve.

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Old 02-08-2016, 11:00 AM
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Originally Posted by RyBread761
That is so weird, because this Snow kit does

they must have changed that or u got a different kit than I got.
Old 02-08-2016, 11:01 AM
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Originally Posted by RyBread761
And apparently every Snow kit comes with a check valve.

they definitely changed that since I got mine, well guess I'm wrong lol
Old 02-08-2016, 11:12 AM
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i know both my aem kits had a check valve included but i have no experience with other manufacturers. I didnt want to damage my stock charge pipe so i drilled out the silicone coupler and installed a bulkhead fitting 2-3 inches away from the TB. great location for servicing or changing out nozzles as its really easy to get to but hidden out of plain sight.
Old 02-09-2016, 04:09 AM
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Nvm

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Old 04-13-2016, 08:30 AM
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Nathan's valve 30 to 40,000kms he runs a lot of meth but he also had a PCV failure
Old 04-13-2016, 08:46 AM
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So meth does not help much with coke valves...
Old 04-13-2016, 08:57 AM
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Originally Posted by blueLNFftw
So meth does not help much with coke valves...
Nathan claims that it was burning oil pretty bad before he changed the PCV. The head that is on my car now is easily the worst I've seen so far but I do not know if he had meth or not
Old 04-13-2016, 07:19 PM
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..

If you have ever tried to remove the coke from a valve, its very hard to get off. I think the only time meth would be of any help is if you started with a clean valve and used it very often.
Old 04-13-2016, 07:34 PM
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Originally Posted by cw383
If you have ever tried to remove the coke from a valve, its very hard to get off. I think the only time meth would be of any help is if you started with a clean valve and used it very often.
Well I can actually test this out I have clean valves I installed last summer and ran meth the whole time so when I take off my intake manifold again I'll try to get some pics
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Old 10-20-2020, 10:22 AM
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Originally Posted by KMO43
Well I can actually test this out I have clean valves I installed last summer and ran meth the whole time so when I take off my intake manifold again I'll try to get some pics
what were your results for keeping valves clean, i am considering run a set up for valve cleaning purposes
Old 12-30-2020, 11:42 PM
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Here's my way of dealing with valve coking or contain it to the minimum.
Had used it only twice in the summer but I will be using it every other oil change at 4k miles.

I would first empty my CRC turbo and valve cleaner in the reservoir. The switch/valve would control the proper amount of cleaner entering the intake. I've made a bracket to lock the gas pedal as per instruction to have the engine rev at 2k. Works well. I would do a few more cleanings before checking the valve with the scope.
Ideally use this right after your valve has been walnut blasted so to prevent the build up. It would be difficult to clean them once the carbon has the chance to baked on to the valves?
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Old 12-31-2020, 09:10 AM
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I am using this now to run cleaner and water through my intake. Works great.
i am however pulling off the manifold to do a manual cleaning tomorrow. First thing i am doing for 2021 lol
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